CVE-2026-59241: CWE-266: Incorrect Privilege Assignment in Siemens SIMATIC WinCC V7.5
Description
CVE-2026-59241 is a high-severity vulnerability in Siemens SIMATIC WinCC versions 7.5, 8.0 (prior to Update 11), and 8.1 (prior to Update 7). The flaw involves incorrect privilege assignment to a database role, allowing an authenticated remote attacker with database access to escalate privileges and execute arbitrary commands on the host system. This could lead to full system compromise. No specific patch information is provided in the input data.
CVSS v3.1
Score 8.8high
Affected software
Siemens
SIMATIC WinCC V7.5
Siemens
SIMATIC WinCC V8.0
Siemens
SIMATIC WinCC V8.1
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability arises from insufficient restriction of permissions assigned to a database role in SIMATIC WinCC V7.5 (all versions), V8.0 (all versions before Update 11), and V8.1 (all versions before Update 7). An authenticated attacker with database access can exploit this to escalate privileges and execute arbitrary commands on the host system running SIMATIC WinCC, potentially compromising the system integrity, confidentiality, and availability. The CVSS v3.1 score is 8.8, indicating high severity with network attack vector, low attack complexity, and no user interaction required.
Potential Impact
An attacker with valid database credentials can escalate privileges beyond intended limits and execute arbitrary commands on the host system. This can lead to full compromise of the affected system, including unauthorized data access, modification, or disruption of services.
Mitigation Recommendations
Patch status is not yet confirmed — check the Siemens vendor advisory for current remediation guidance. Until an official fix is available, restrict database access to trusted users only and monitor for unusual privilege escalations. Follow Siemens' security recommendations once published.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- siemens
- Date Reserved
- 2026-07-03T14:16:52.881Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6acdfe9c2cdf04f6564c8889
Added to database: 10/13/2026, 09:49:16 UTC
Last enriched: 10/13/2026, 10:18:16 UTC
Last updated: 10/13/2026, 18:57:34 UTC
Views: 16
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